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Colour

#1170FF

  • #1170FF
  • Blue
  • Dark
  • Nearest: Royal blue

#1170FF is a blue with RGB values 17, 112, 255 and HSL 216°, 100%, 53%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1170FF#1170FF
HEX#1170FF
RGBrgb(17, 112, 255)
RGB (0–1)0.0667, 0.4392, 1
RGB percentages6.7%, 43.9%, 100%
HSLhsl(216.1, 100%, 53.3%)
HSV / HSBhsv(216.1, 93.3%, 100%)
CMYK93.3%, 56.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,143,039
CSS custom property--colour: #1170FF;

Brightness & contrast

Relative luminance0.18928WCAG 2.x, 0 is black and 1 is white
Perceived brightness121.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.79:1
Contrast with white4.39:1WCAG normal text: Fail
Contrast with black4.79:1WCAG normal text: AA
Greyscale equivalent#666666
Inverted#EE8F00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0083FFno red cones; affects about 1% of men; ΔE 15.5 from the original
Deuteranopia#006FFCno green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#0094ADno blue cones; rare, and affects men and women equally; ΔE 76.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.39:1WCAG large text: AA
Contrast with black, large text4.79:1WCAG large text: AAA

Named colours

Royal blue · ΔE 13Medium slateblue · ΔE 17Slate blue · ΔE 21.6Dodgerblue · ΔE 25.5Medium purple · ΔE 28.9Cornflower blue · ΔE 36.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.99, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFA011
Analogous#11E7FF, #2911FF
Triadic#FF1170, #70FF11
Split complementary#FF2911, #E7FF11
Tetradic#FF11E7, #FFA011, #11FF29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DDEBFF
Lighter +30%#AACCFF
Lighter +20%#77ADFF
Lighter +10%#448FFF
Darker −10%#0058DD
Darker −20%#0044AA
Darker −30%#002F77
Darker −40%#001B44
More saturated +25%#1170FF
Less saturated −25%#2F76E1

Channel breakdown

R17
G112
B255
Red17 (6.7%)
Green112 (43.9%)
Blue255 (100%)
Hue216.05°
Saturation (HSL)100%
Lightness53.33%
Dominant channelBlue
Hex per channelR 11 · G 70 · B FF

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Every value on this page was computed from “1170ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.